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Polarized light type light-emitting diode (LED) straw hat lamp bead

A kind of straw hat lamp and polarized light technology, which is applied in the field of polarized LED straw hat lamp beads, which can solve the problems of stray light, poor polarized light effect, and unfavorable control of light.

Active Publication Date: 2012-11-14
FUJIAN HONGBO OPTO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the offset angle of 10°~15° is too small, the polarization effect is not obvious, and there will still be more stray light
The encapsulated lens described in this patent is hemispherical. When the lens is encapsulated in a pin with an inclined reflector, it is not conducive to controlling light. The lamp composed of this kind of LED lamp beads is not suitable for outdoor lighting places.

Method used

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  • Polarized light type light-emitting diode (LED) straw hat lamp bead
  • Polarized light type light-emitting diode (LED) straw hat lamp bead

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Experimental program
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Embodiment Construction

[0021] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0022] Wherein, L1 represents the normal line of point A, L2 represents the connection line between point A and the center point B of the LED chip 4, L3 represents the extension line of the surface of the LED chip 4, and L4 and L5 represent the extension of the opening of the internal reflector 3, respectively. Line, L6 means light.

[0023] see figure 1 As shown, the embodiment of the present invention includes a positive pin 1, a negative pin 2, an internal reflector 3, an LED chip 4, and a packaging lens 5 that encapsulates the internal reflector 3, and the packaging lens 5 includes a lens base 51 and lens curved surface 52, the internal reflector 3 is bowl-shaped, its opening diameter is larger than the bottom diameter, the internal r...

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Abstract

The invention relates to a polarized light type light-emitting diode (LED) straw hat lamp bead. The polarized light type LED straw hat lamp bead comprises a bracket with positive and negative pins and an inner reflector, an LED chip and an encapsulating lens for encapsulating the inner reflector, wherein the encapsulating lens comprises a lens base and a lens curve; the inner reflector is arranged on the upper part of the negative pin in an inclined manner and faces towards the positive pin; the lens curve is axial surface asymmetrical at C90-270 degrees and symmetrical at C0-180 degrees; and the curvature variation of the lens curve affects refraction of emergent rays from the inner reflector. The polarized light type LED straw hat lamp bead is good in light polarization effect and high in light source utilization rate, and can be widely applied to illumination equipment (such as a garden lamp) or display equipment (such as an LED display screen) mounted on a high position.

Description

technical field [0001] The invention relates to the field of light-emitting diodes, in particular to a polarized LED straw hat lamp bead with an internal reflector arranged obliquely and an asymmetric packaging lens. Background technique [0002] With the gradual popularization and application of LED in the field of lighting and display, its advantages in energy saving, high efficiency, environmental protection, and long service life are increasingly recognized by people. At the same time, people also adopt various methods to further improve the light efficiency of LED. and light utilization. [0003] The usual straw hat LED lamp bead includes a bracket with positive and negative pins and an internal reflector, an LED chip and a package lens, wherein a bowl-shaped internal reflector is arranged on the upper part of the negative pin, and the LED chip is fixed at the bottom of the internal reflector , the outer surface of the internal reflector is encapsulated with an encapsu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V5/04F21V13/04F21Y101/02
Inventor 黄胜邦罗时睿阮锐陈克昌
Owner FUJIAN HONGBO OPTO ELECTRONICS TECH CO LTD
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